Eastwood, John D.Wyman, Amanda C.2022-12-142022-12-142022-08-032022-12-14http://hdl.handle.net/10315/40689This thesis outlines the development and preliminary validation of a suite of self-report measures that assess state activation of the (revised) Reinforcement Sensitivity Theory motivational systems and related anger/aggression. Scale content was informed by the Reinforcement Sensitivity Theory of Personality Questionnaire (RST-PQ; Corr & Cooper, 2016) as well as an extensive literature review. EFAs and CFAs indicated a robust one-factor structure for the fight-flight-freeze system (FFFS); a higher-order structure for the Behavioural Activation System (BAS; comprised of a higher order BAS factor; and lower order Reward Interest, Goal-Drive Persistence, Reward Reactivity and Impulsivity factors); a two-factor structure for the revised Behavioural Inhibition System (rBIS; Anxious Uncertainty and Behavioural Disengagement); and a three factor structure for the anger and aggression scales (Predatory Aggression, Anger/Frustration and Defensive Aggression). Convergent validity was demonstrated for the rBIS, BAS and FFFS scales by establishing the expected pattern of inter-correlations and relations with a trait-level measure of rRST. The rRST state scales are the first psychometrically validated measures of state rRST system activation and are also efficient to use and theoretically coherent.Author owns copyright, except where explicitly noted. Please contact the author directly with licensing requests.PsychologyPsychometricsPersonality psychologyElectronic Thesis or Dissertation2022-12-14Revised Reinforcement Sensitivity TheoryBehavioural Inhibition SystemBehavioural Activation SystemFight Flight Freeze SystemPredatory aggressionDefensive aggressionAngerFrustrationScale developmentFactor analysisMeasurement.